Overview
overview
7Static
static
3ffdec_21.0...up.exe
windows7-x64
7ffdec_21.0...up.exe
windows10-2004-x64
7$PLUGINSDI...LL.dll
windows7-x64
3$PLUGINSDI...LL.dll
windows10-2004-x64
3$PLUGINSDI...nu.dll
windows7-x64
3$PLUGINSDI...nu.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...gs.dll
windows7-x64
3$PLUGINSDI...gs.dll
windows10-2004-x64
3ffdec.bat
windows7-x64
1ffdec.bat
windows10-2004-x64
7ffdec.exe
windows7-x64
3ffdec.exe
windows10-2004-x64
7ffdec.jar
windows7-x64
1ffdec.jar
windows10-2004-x64
7lib/JavactiveX.jar
windows7-x64
1lib/JavactiveX.jar
windows10-2004-x64
1lib/LZMA.jar
windows7-x64
1lib/LZMA.jar
windows10-2004-x64
1lib/avi.jar
windows7-x64
1lib/avi.jar
windows10-2004-x64
1lib/cmykjpeg.jar
windows7-x64
1lib/cmykjpeg.jar
windows10-2004-x64
1lib/ddsreader.jar
windows7-x64
1lib/ddsreader.jar
windows10-2004-x64
1lib/decimal.jar
windows7-x64
1lib/decimal.jar
windows10-2004-x64
1lib/ffdec_lib.jar
windows7-x64
1lib/ffdec_lib.jar
windows10-2004-x64
1lib/flamingo-6.2.jar
windows7-x64
1lib/flamingo-6.2.jar
windows10-2004-x64
1Analysis
-
max time kernel
149s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
11/09/2024, 13:23
Static task
static1
Behavioral task
behavioral1
Sample
ffdec_21.0.5_setup.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
ffdec_21.0.5_setup.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/StartMenu.dll
Resource
win7-20240903-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/StartMenu.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240729-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win7-20240704-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral11
Sample
ffdec.bat
Resource
win7-20240903-en
Behavioral task
behavioral12
Sample
ffdec.bat
Resource
win10v2004-20240802-en
Behavioral task
behavioral13
Sample
ffdec.exe
Resource
win7-20240903-en
Behavioral task
behavioral14
Sample
ffdec.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral15
Sample
ffdec.jar
Resource
win7-20240903-en
Behavioral task
behavioral16
Sample
ffdec.jar
Resource
win10v2004-20240802-en
Behavioral task
behavioral17
Sample
lib/JavactiveX.jar
Resource
win7-20240903-en
Behavioral task
behavioral18
Sample
lib/JavactiveX.jar
Resource
win10v2004-20240802-en
Behavioral task
behavioral19
Sample
lib/LZMA.jar
Resource
win7-20240903-en
Behavioral task
behavioral20
Sample
lib/LZMA.jar
Resource
win10v2004-20240802-en
Behavioral task
behavioral21
Sample
lib/avi.jar
Resource
win7-20240729-en
Behavioral task
behavioral22
Sample
lib/avi.jar
Resource
win10v2004-20240802-en
Behavioral task
behavioral23
Sample
lib/cmykjpeg.jar
Resource
win7-20240903-en
Behavioral task
behavioral24
Sample
lib/cmykjpeg.jar
Resource
win10v2004-20240802-en
Behavioral task
behavioral25
Sample
lib/ddsreader.jar
Resource
win7-20240903-en
Behavioral task
behavioral26
Sample
lib/ddsreader.jar
Resource
win10v2004-20240802-en
Behavioral task
behavioral27
Sample
lib/decimal.jar
Resource
win7-20240903-en
Behavioral task
behavioral28
Sample
lib/decimal.jar
Resource
win10v2004-20240802-en
Behavioral task
behavioral29
Sample
lib/ffdec_lib.jar
Resource
win7-20240903-en
Behavioral task
behavioral30
Sample
lib/ffdec_lib.jar
Resource
win10v2004-20240802-en
Behavioral task
behavioral31
Sample
lib/flamingo-6.2.jar
Resource
win7-20240903-en
Behavioral task
behavioral32
Sample
lib/flamingo-6.2.jar
Resource
win10v2004-20240802-en
General
-
Target
ffdec.exe
-
Size
394KB
-
MD5
c1c196b87e88e0ee86295f0ab6a7c17f
-
SHA1
101a02625c0f80caeb412298c020cee417c47d93
-
SHA256
b66b0182373a4992244284fb2aa6bdb1a72a3bfa442b6a34421d6e51915681c3
-
SHA512
305a1db83a69ac713cc6b05707e38675221db2159f64789175098c72d571b34b7c4453c0f9b9e851c44d63e17e555a273f0c9e7e42977bcb5740e29138c8c4c9
-
SSDEEP
12288:iCUf7M6OfVLh4vzzzIuYzzzczzzzuREe/tzzzzzztLWz1j1Eqp:idf7rOfVLh4vzzzIuYzzzczzzzuREe/I
Malware Config
Signatures
-
Loads dropped DLL 1 IoCs
pid Process 2212 javaw.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ffdec.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 2212 javaw.exe 2212 javaw.exe 2212 javaw.exe 2212 javaw.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4964 wrote to memory of 2212 4964 ffdec.exe 86 PID 4964 wrote to memory of 2212 4964 ffdec.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\ffdec.exe"C:\Users\Admin\AppData\Local\Temp\ffdec.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4964 -
C:\Program Files\Java\jre-1.8\bin\javaw.exe"C:\Program Files\Java\jre-1.8\bin\javaw.exe" -Xmx8192m -Djava.net.preferIPv4Stack=true -Djna.nosys=true -Dl5j.pid=4964 -Dl5j.encargs=1 -jar "C:\Users\Admin\AppData\Local\Temp\ffdec.jar"2⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
PID:2212
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
190KB
MD53cfe09aa1c4e999fedb2a995428e4de3
SHA1e501129a110431c3a7bc60576a19eef2ba984356
SHA2563f7553803b33b999e313ed4a069ae9872c595038fe35a54c053a1b19d89dcfad
SHA512320f4497197b1b7b752471f16d2fad0eacc45160219ce774ff0bb534f504fedb73e991af0c7268e8f1195ce75cbbfedc8b9c19ec31afb4b14e9673ac9c40b1db